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微空气和液循环,以加快垃圾填埋场稳定:通过选择性细菌增强水解酸性酸化

Kaili Liu¹, Longyi Lv¹, Weiguang Li²

¹Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China.

Bioresource technology

|August 6, 2023

概括

加速填埋场稳定对于市政当局来说至关重要. 这项研究结合了微空气和液循环,以快速降解有机废物,显著改善去除率和微生物活性.

科学领域:

环境工程环境工程
微生物学微生物学
废物管理废物管理

背景情况:

垃圾填埋场的稳定是一个漫长的过程,给市政当局带来了挑战.
有效的有机物降解是减少填埋场寿命和环境影响的关键.

研究的目的:

研究微空气和液循环对垃圾填埋场中有机物快速降解的联合影响.
评估这些方法对关键污染物去除和微生物社区结构的影响.

主要方法:

在垃圾填埋垃圾中实施微型通风系统,加上液循环.
对挥发性脂肪酸 (VFA),化学氧气需求 (COD),总 (TP) 和氨 (NH4+-N) 的监测.
微生物社区转移的分析,专注于水解细菌和甲基生物.

主要成果:

显著增加VFAs,促进更快地进入甲生成阶段.
实现了高的去除率:COD的80.17%,TP的48.30%,NH4+-N的48.56%.
有机物降解率达到了50%,随着随机水解细菌 (如Rummeliibacillus,Bacillus) 的丰富增加,甲基生物 (如Methanobrevibacter,Methanoculleus) 的氧气耐受性得到改善.

结论:

微空气和液循环有效地加速了垃圾填埋场的稳定.
这种综合方法通过促进有益的微生物种群来增强有机物质的降解.
这项研究表明了改善垃圾填埋场废物管理效率的可行策略.

关键词:

在垃圾填埋场填埋垃圾.液循环再循环的方法微空气化微空气化微生物微生物稳定的稳定性稳定的稳定性

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